<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>手写AJAX</title>
</head>
<body>
  <script>
    var xhr = new XMLHttpRequest();
    xhr.open('GET','http://127.0.0.1:5500/src/%E9%9D%A2%E8%AF%95%E9%A2%98/');
    xhr.onreadystatechange = function() {
      if(xhr.readyState === 4) {
        if(xhr.status === 200) {
          console.log(xhr.responseText)
        }
      }
    }
    xhr.send();
  </script>
</body>
</html>